===================================================================
--- original.js
+++ change.js
@@ -1,6 +1,350 @@
-/****
+/**** 
+* Plugins
+****/ 
+var tween = LK.import("@upit/tween.v1");
+
+/**** 
+* Classes
+****/ 
+var Enemy = Container.expand(function () {
+	var self = Container.call(this);
+	var enemyBody = self.attachAsset('enemy', {
+		anchorX: 0.5,
+		anchorY: 1.0
+	});
+	self.speed = 2;
+	self.direction = 1;
+	self.startX = 0;
+	self.patrolDistance = 300;
+	self.update = function () {
+		self.x += self.speed * self.direction;
+		if (Math.abs(self.x - self.startX) > self.patrolDistance) {
+			self.direction *= -1;
+		}
+		// Ground collision for enemies
+		if (self.y >= groundLevel) {
+			self.y = groundLevel;
+		}
+		// Platform collision for enemies
+		for (var i = 0; i < platforms.length; i++) {
+			var platform = platforms[i];
+			if (self.intersects(platform) && self.y - 40 < platform.y - 20) {
+				self.y = platform.y - 20;
+			}
+		}
+	};
+	return self;
+});
+var JunkPile = Container.expand(function () {
+	var self = Container.call(this);
+	var junkBody = self.attachAsset('junkPile', {
+		anchorX: 0.5,
+		anchorY: 1.0
+	});
+	return self;
+});
+var Platform = Container.expand(function () {
+	var self = Container.call(this);
+	var platformBody = self.attachAsset('platform', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	return self;
+});
+var Player = Container.expand(function () {
+	var self = Container.call(this);
+	var playerBody = self.attachAsset('player', {
+		anchorX: 0.5,
+		anchorY: 1.0
+	});
+	var leftEye = self.attachAsset('playerEye', {
+		anchorX: 0.5,
+		anchorY: 0.5,
+		x: -20,
+		y: -50
+	});
+	var rightEye = self.attachAsset('playerEye', {
+		anchorX: 0.5,
+		anchorY: 0.5,
+		x: 20,
+		y: -50
+	});
+	var leftPupil = self.attachAsset('playerPupil', {
+		anchorX: 0.5,
+		anchorY: 0.5,
+		x: -20,
+		y: -50
+	});
+	var rightPupil = self.attachAsset('playerPupil', {
+		anchorX: 0.5,
+		anchorY: 0.5,
+		x: 20,
+		y: -50
+	});
+	self.velocityX = 0;
+	self.velocityY = 0;
+	self.onGround = false;
+	self.jumpPower = -15;
+	self.gravity = 0.8;
+	self.maxSpeed = 8;
+	self.friction = 0.85;
+	self.update = function () {
+		// Apply gravity
+		self.velocityY += self.gravity;
+		// Apply friction
+		self.velocityX *= self.friction;
+		// Update position
+		self.x += self.velocityX;
+		self.y += self.velocityY;
+		// Ground collision
+		if (self.y >= groundLevel) {
+			self.y = groundLevel;
+			self.velocityY = 0;
+			self.onGround = true;
+		} else {
+			self.onGround = false;
+		}
+		// Platform collision
+		for (var i = 0; i < platforms.length; i++) {
+			var platform = platforms[i];
+			if (self.velocityY > 0 && self.intersects(platform) && self.y - 80 < platform.y - 20) {
+				self.y = platform.y - 20;
+				self.velocityY = 0;
+				self.onGround = true;
+			}
+		}
+		// Boundary checking
+		if (self.x < 40) {
+			self.x = 40;
+		}
+		if (self.x > levelWidth - 40) {
+			self.x = levelWidth - 40;
+		}
+	};
+	self.jump = function () {
+		if (self.onGround) {
+			self.velocityY = self.jumpPower;
+			self.onGround = false;
+			LK.getSound('jump').play();
+		}
+	};
+	self.moveLeft = function () {
+		self.velocityX = Math.max(self.velocityX - 1.5, -self.maxSpeed);
+	};
+	self.moveRight = function () {
+		self.velocityX = Math.min(self.velocityX + 1.5, self.maxSpeed);
+	};
+	return self;
+});
+
+/**** 
 * Initialize Game
-****/
+****/ 
 var game = new LK.Game({
-	backgroundColor: 0x000000
-});
\ No newline at end of file
+	backgroundColor: 0x2C3E50
+});
+
+/**** 
+* Game Code
+****/ 
+var player;
+var enemies = [];
+var platforms = [];
+var junkPiles = [];
+var goal;
+var camera;
+var groundLevel = 2600;
+var levelWidth = 4000;
+var gameWon = false;
+// Create camera object for following player
+camera = {
+	x: 0,
+	y: 0,
+	targetX: 0,
+	targetY: 0,
+	smoothing: 0.1
+};
+// Create player
+player = game.addChild(new Player());
+player.x = 200;
+player.y = groundLevel;
+// Create platforms
+var platformPositions = [{
+	x: 500,
+	y: 2400
+}, {
+	x: 800,
+	y: 2200
+}, {
+	x: 1200,
+	y: 2300
+}, {
+	x: 1600,
+	y: 2100
+}, {
+	x: 2000,
+	y: 2000
+}, {
+	x: 2400,
+	y: 2200
+}, {
+	x: 2800,
+	y: 2400
+}, {
+	x: 3200,
+	y: 2300
+}, {
+	x: 3600,
+	y: 2500
+}];
+for (var i = 0; i < platformPositions.length; i++) {
+	var platform = game.addChild(new Platform());
+	platform.x = platformPositions[i].x;
+	platform.y = platformPositions[i].y;
+	platforms.push(platform);
+}
+// Create enemies
+var enemyPositions = [{
+	x: 600,
+	y: groundLevel
+}, {
+	x: 1000,
+	y: 2200
+}, {
+	x: 1400,
+	y: groundLevel
+}, {
+	x: 1800,
+	y: 2000
+}, {
+	x: 2200,
+	y: groundLevel
+}, {
+	x: 2600,
+	y: 2200
+}, {
+	x: 3000,
+	y: groundLevel
+}, {
+	x: 3400,
+	y: 2300
+}];
+for (var i = 0; i < enemyPositions.length; i++) {
+	var enemy = game.addChild(new Enemy());
+	enemy.x = enemyPositions[i].x;
+	enemy.y = enemyPositions[i].y;
+	enemy.startX = enemy.x;
+	enemies.push(enemy);
+}
+// Create junk piles for decoration
+var junkPositions = [{
+	x: 300,
+	y: groundLevel
+}, {
+	x: 700,
+	y: groundLevel
+}, {
+	x: 1100,
+	y: groundLevel
+}, {
+	x: 1500,
+	y: groundLevel
+}, {
+	x: 1900,
+	y: groundLevel
+}, {
+	x: 2300,
+	y: groundLevel
+}, {
+	x: 2700,
+	y: groundLevel
+}, {
+	x: 3100,
+	y: groundLevel
+}, {
+	x: 3500,
+	y: groundLevel
+}];
+for (var i = 0; i < junkPositions.length; i++) {
+	var junk = game.addChild(new JunkPile());
+	junk.x = junkPositions[i].x;
+	junk.y = junkPositions[i].y;
+	junkPiles.push(junk);
+}
+// Create goal
+goal = game.addChild(LK.getAsset('goal', {
+	anchorX: 0.5,
+	anchorY: 0.5
+}));
+goal.x = levelWidth - 200;
+goal.y = groundLevel - 50;
+// Touch controls
+var touchStartX = 0;
+var touchStartY = 0;
+var isDragging = false;
+game.down = function (x, y, obj) {
+	touchStartX = x;
+	touchStartY = y;
+	isDragging = true;
+	// Jump on tap
+	player.jump();
+};
+game.move = function (x, y, obj) {
+	if (isDragging) {
+		var deltaX = x - touchStartX;
+		if (deltaX < -20) {
+			player.moveLeft();
+		} else if (deltaX > 20) {
+			player.moveRight();
+		}
+	}
+};
+game.up = function (x, y, obj) {
+	isDragging = false;
+};
+// Game update loop
+game.update = function () {
+	if (gameWon) return;
+	// Update camera to follow player
+	camera.targetX = player.x - 1024;
+	camera.targetY = player.y - 1366;
+	camera.x += (camera.targetX - camera.x) * camera.smoothing;
+	camera.y += (camera.targetY - camera.y) * camera.smoothing;
+	// Keep camera within level bounds
+	if (camera.x < 0) camera.x = 0;
+	if (camera.x > levelWidth - 2048) camera.x = levelWidth - 2048;
+	if (camera.y < -500) camera.y = -500;
+	if (camera.y > 0) camera.y = 0;
+	// Apply camera offset to game
+	game.x = -camera.x;
+	game.y = -camera.y;
+	// Check collision with enemies
+	for (var i = 0; i < enemies.length; i++) {
+		var enemy = enemies[i];
+		if (player.intersects(enemy)) {
+			LK.getSound('hit').play();
+			LK.effects.flashScreen(0xFF0000, 500);
+			LK.setTimeout(function () {
+				LK.showGameOver();
+			}, 500);
+			return;
+		}
+	}
+	// Check if player reached goal
+	if (player.intersects(goal)) {
+		gameWon = true;
+		LK.effects.flashScreen(0x00FF00, 1000);
+		LK.setTimeout(function () {
+			LK.showYouWin();
+		}, 1000);
+		return;
+	}
+	// Check if player fell off the level
+	if (player.y > groundLevel + 500) {
+		LK.effects.flashScreen(0xFF0000, 500);
+		LK.setTimeout(function () {
+			LK.showGameOver();
+		}, 500);
+		return;
+	}
+};
\ No newline at end of file